Question

oxygen is the gas that humans breathe in. it is also the gas that plants release during the process of photosynthesis.

1. oxygen has 8 protons, 8 electrons, and 7 neutrons. in the box below, draw a model of atoms for oxygen. make sure to label the subatomic particles.
2. what element has similar properties to oxygen?
3. oxygen is a gas. in your own words, describe the distance of the atoms in oxygen gas.
4. oxygen is a gas. in your own words, describe the speed of the atoms in oxygen gas.

Explanation:

1.

Step1: Draw the nucleus

Draw a small circle (nucleus) and label 8 protons (p+) and 7 neutrons (n).

Step2: Draw electron shells

Draw two electron shells. The first shell (K - shell) can hold 2 electrons (e - ), and the second shell (L - shell) can hold 6 electrons (e - ). Label the electrons.

2.

Elements in the same group (column) of the periodic table have similar properties. Oxygen is in group 16. Sulfur (S), Selenium (Se), Tellurium (Te), and Polonium (Po) are in the same group as oxygen.

In a gas, the atoms are far apart from each other compared to solids and liquids.

Answer:

Sulfur (S), Selenium (Se), Tellurium (Te), Polonium (Po)

3.